I'm an HVAC guy here. Ran into one of my pumps that had its bearing fried. Took a closer look and it's a 10hp motor with 6 leads. My service guys typically deal with 9 lead motors. There are 3 diagrams on the motor itself, a "Starting", one named "Delta running". The leads were wired according to the "starting" diagram. I purchased (I thought I purchased) a DOL motor but it sounds like I got a Wye-Delta motor. Did the wiring cause the bearing failure? Also, is 6 leads for a 208-230/460V motor unusual? Thanks
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.
Additive manufacturing, also known as 3D printing, is quickly becoming an industry standard for product manufacturing in a variety of applications, including medical devices, aviation and aeronautics parts, and transportation components. Download Now
The growing complexity of automotive systems is putting a large amount of pressure on their designers. Industry constantly pushes to add new features for comfort, entertainment, and safety, requiring a single vehicle to use an increasing number of communicating electronic devices. Download Now
Fly by wire, remotely distributed control, remote and automated piloting, and augmented reality are a few evolutionary achievements in flight control and guidance that further remove the potential of human error in flight control systems. Download Now